Compare 21277 vs 21280
| Property | 21277 | 21280 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 4 |
| Total factors | 1 | 8 |
| Prime factorization | 212771 | 25 × 51 × 71 × 191 |
| Prime factorization | 21277 | 2 × 2 × 2 × 2 × 2 × 5 × 7 × 19 |
| Divisors count | 2 | 48 |
| Divisors | 1, 21277 | 1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 160, 190, 224, 266, 280, 304, 380, 532, 560, 608, 665, 760, 1064, 1120, 1330, 1520, 2128, 2660, 3040, 4256, 5320, 10640, 21280 |
| Number of properties | 6 | 0 |
| Additive primes | 1109th | |
| Harmonic primes | 876th | |
| Isolated primes | 1669th | |
| Primes | 2390th | |
| Pythagorean primes | 1186th | |
| Sexy primes (1st member) | 724th | |
| Roman numberals | ||
| Base 2 | 1010011000111012 | 1010011001000002 |
| Base 3 | 10020120013 | 10020120113 |
| Base 4 | 110301314 | 110302004 |
| Base 5 | 11401025 | 11401105 |
| Base 6 | 2423016 | 2423046 |
| Base 7 | 1160147 | 1160207 |
| Base 8 | 514358 | 514408 |
| Base 9 | 321619 | 321649 |
| Base 10 | 2127710 | 2128010 |
| Base 11 | 14a9311 | 14a9611 |
| Base 12 | 1039112 | 1039412 |
| Base 13 | 98b913 | 98bc13 |
| Base 14 | 7a7b14 | 7a8014 |
| Base 15 | 648715 | 648a15 |
| Base 16 | 531d16 | 532016 |